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- From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
- Date: Thu, 21 Jan 2021 10:44:53 +0100
- Subject: [PATCH] mtd: rawnand: brcmnand: disable WP on BCM4908
- MIME-Version: 1.0
- Content-Type: text/plain; charset=UTF-8
- Content-Transfer-Encoding: 8bit
- BCM4908 contains NAND controller version 0x0701 (v7.1). It means that
- NAND_WP should be available.
- For some reason setting #WP on doesn't result in clearing NAND_STATUS_WP
- status bit:
- [ 1.077857] bcm63138_nand ff801800.nand: timeout on status poll (expected c0000040 got c00000c0)
- [ 1.086832] bcm63138_nand ff801800.nand: nand #WP expected on
- For now try working without touching #WP.
- Signed-off-by: Rafał Miłecki <[email protected]>
- ---
- --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
- +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
- @@ -37,7 +37,11 @@
- * 1: NAND_WP is set by default, cleared for erase/write operations
- * 2: NAND_WP is always cleared
- */
- +#if IS_ENABLED(CONFIG_ARCH_BCM4908)
- +static int wp_on = 0;
- +#else
- static int wp_on = 1;
- +#endif
- module_param(wp_on, int, 0444);
-
- /***********************************************************************
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